Pigmentni glaukom (PG) tip je sekundarnoga glaukoma otvorenog kuta, povezan s pigmentnim disperzijskim sindromom u kojem dolazi do progresivnog odumiranja vidnog živca i oštećenja vidnog polja. Cilj ...istraživanja bilo je ispitivanje učinka periferne laserske iridotomije (PLI) na biometrijske parametre prednjeg segmenta oka upotrebom optičke koherentne tomografije, kao i na vrijednosti očnog tlaka prije primjene PLI-ja u bolesnika s PG-om i 6 mjeseci poslije zahvata. Materijal i metode: Proveli smo prospektivno presječno istraživanje na 15-ero ispitanika (ukupno 30 očiju) s dijagnosticiranim PG-om, u Klinici za očne bolesti Kliničkoga bolničkog centra Zagreb. Svim ispitanicima uključenima u istraživanje izveden je PLI s pomoću lasera Nd:YAG. Vrijednosti očnog tlaka izmjerene su Goldmannovom aplanacijskom tonometrijom. Optička koheretna tomografija (OCT), obavljena uređajem Visante™ (Carl Zeiss Meditec, Inc., Dublin, SAD), upotrijebljena je da bi se utvrdili parametri prednje očne sobice, uključujući njezin kut u temporalnom kvadrantu i dubinu, i to prije PLI-ja i 6 mjeseci poslije njega. Zatim su analizirane vrijednosti početnih i postoperativnih mjera. Rezultati statističke analize pokazali su da primjena PLI-ja kod ispitanika s PG-om dovodi do smanjenja kuta prednje očne sobice, smanjenja njezine dubine (p < 0,001) te sniženja vrijednosti očnog tlaka (p < 0,005) u razdoblju 6-mjesečnog praćenja. Zaključak: PLI je metoda koja pokazuje povoljan učinak na vrijednosti očnog tlaka i biometrijske parametre prednjeg segmenta oka u bolesnika s PG-om. Postupak je siguran i bezbolan za bolesnike, a može se izvoditi ambulantno u svakodnevnoj kliničkoj praksi.
Rad je podijeljen u tri dijela. U prvom dijelu autor se bavi definicijom misterija i pojma svećeništva idući od biblijskih temelja kako bi došao do govora o jedincatom Kristovu svećeništvu koje se u ...Crkvi ostvaruje kroz krsno svećeništvo svih vjernika te ministerijalno svećeništvo svih zaređenih službenika Crkve. U drugom dijelu rada, na temelju rečenog, autor produbljuje shvaćanje svećeništva naglašavanjem da je Krist izvorište i model sveg svećeništva, i to kroz svoje služenje – koje ide od Isusova utjelovljenja, preko rođenja do javnog djelovanja – zatim kroz teologiju križa opisanu kroz Kristovo samopredanje na posljednjoj večeri, koja je predslika euharistije, i kroz spasenje koje se nastavlja u vječnosti. Sve to zaokružuje treći dio rada govorom o svrsi i potrebi Kristova svećeništva u misteriju božanskog plana spasenja čovječanstva.
Background: Proximal humerus fractures are represented as 4-5% of all fractures, with incidence notably growing with age.
Since surgical internal fixation in treatment of proximal humeral fractures ...is used, fractures of osteoporotic bone and choice of plate
for their osteosynthesis represent particular problem. The aim of the study was to test two locking plates: Philos plate with locking
screws with determinated direction, and Arthrex plate with poliaxial locking screws, using the finite element method.
Subjects and methods: This study used version 6.10 of Abaqus FEA software package for simulation and fine element analysis of
Philos and Artrex plates attached to the osteotomy models of proximal humerus with fracture gap at 0°, 10° and 20° in four types of
static load: abduction, adduction, axial compression and flexion. Simulation results of loads in abduction, adduction, axial loads and
flexion, were described with the total bone displacement (U) and maximum bone displacement in the fracture gap (Uf ).
Results: When examining the Philos plate in axial load on the bone with fracture gap angle from 0°, 10° and 20° no significant
differences between the results for the displacements were observed. Therefore, results for other loads are related to total
displacements of the bone only at the angle of 0°. Given that the results of the total bone displacement and maximum bone
displacement in the fracture gap with Artrex plate were mostly higher, for comparison with the results of bone displacement in Philos
plate it was taken that total bone displacement and maximum displacement in the fracture gap in Artrex plate represent 100% of the
total displacement. Philos plate showed 60.71% for abduction, 76.07% for adduction, 102.24% for axial loads and 79.59% for
flexion of total bone displacement in Artrex plate, and 60.48% for abduction, 76.07% for adduction, 96.05% for axial load and
79.96% for flexion of maximum displacement in the fracture gap in Artrex plate.
Conclusions: Osteosynthesis for osteoporotic fractures of proximal humerus with Philos plate in computer simulation proved to
be more stable than with Arthrex plate.
Background: In the last fifty years since plate and screw osteosynthesis has been implemented in fracture treatment,
osteosporotic bone fractures were observed as a special problem. Due to special ...histologic, anatomic, physical and biomehanic
properties of osteoporotic changed bone the laws of biomechanics suggest that stable osteosynthesis for osteoporotic bone is
necessary to increase the contact surface of metallic implants and bone and the stability of the screw-plate-bone compound. There
are numerous surgical techniques and methods for treatment of osteoporotic proximal humeral fractures. Every surgical procedure
has to establish anatomical reduction and stable fixation that will enable early mobilisation.
Subjects and methods: The aim of this study was to present results of internal fixation of proximal humeral osteoporotic
fractures with PHILOS locking plate. Between 2007 and 2012, a total of 67 patients older than 65 years with closed proximal
humerus fractures underwent surgical treatment with PHILOS plate system (Synthes, Switzerland). 42 patients were operated with
deltopectoral approach and 25 with deltoid split approach. After a mean follow up period of 14.68 (6-28) months functional and
radiologic results were assessed.
Results: We noted 9 postoperative complications related to surgical technique (1 intraarticular screw placement, 1 displacement
in major tuberculum fragment, 1 displacement in major tuberculum fragment along with oblique placement of the plate, 2 cases of
inadequate reduction, 1 case of humeral head avascular necrosis, varus humeral head fixation in 3 cases). None of the patients
developed superficial or deep surgical infection. There was no nonunions. In the final evaluation, the Constant shoulder score was
91.75 (72-100).
Conclusions: In this study PHILOS locking plate showed good applicability, respecting bone biologic properties because of
negligible interference with blood supply of the humeral head. There was no requirement to shape the plate enabling stabilization at
constant angles as clear benefit of this plate. All that enables early mobilisation, and no implant insufficiency resulting in
satisfactory treatment results and high Constant shoulder scores.
Znanstvena etika zagrebačkih studenata Ježovita, Josip; Knežević, Lovro
Media, culture and public relations (Online),
01/2024, Volume:
14, Issue:
2
Journal Article, Paper
Peer reviewed
Open access
Dvojako istražena, kroz profesionalne vrijednosti i etički upitna ponašanja, znanstvena etika među studentima pojavljuje se podjednako kao i u sličnim istraživanjima znanstvenika, no s pojedinim ...razlikama i naglascima specifičnima za studentski život. Ovaj rad je nastavak na istraživanje u kojem se ispitalo kako zagrebački studenti doživljavaju znanost (Knežević, 2023.). U radu se prikazuju rezultati o znanstvenoj etici koji su dobiveni metodama anketa i intervjua. Rezultati se odnose na sljedeće istraživačke ciljeve: (1) zastupljenosti profesionalnih znanstvenih vrijednosti i normi kod zagrebačkih studenata; i (2) razine percepcije etički upitnih ponašanja kod zagrebačkih studenata. Analiza je pokazala da se od profesionalnih normi ističu objektivnost i preciznost, a od etički upitnih ponašanja prema percepciji ispitanika najprisutniji su razni oblici plagiranja, diskriminacije i neadekvatnog pripisivanja (ko)autorstva. Osim kvantitativnih podataka u radu pružen je pregled i dijela kvalitativnih koji se referiraju na zadanu temu. Sveukupno, rad naglašava važnost područja kojim se bavi i nastoji obnoviti slična pitanja zbog novih izazova u studiranju i znanosti koji dolaze s novim tehnologijama i trendovima.
Doubly researched, through professional values and ethically questionable behaviors, scientific ethics among students appears in the same way as in similar scientific research, but with certain differences and emphases specific to student life. This paper is a continuation of the research that examined how Zagreb students perceive science (Knežević, 2023). The paper presents the results on scientific ethics, which were obtained using survey and interview methods. The results refer to the following research aims: (1) representation of professional scientific values and norms among Zagreb students; and (2) the level of perception of ethically questionable behavior among Zagreb students. The analysis showed that among the professional norms objectivity and precision stand out, and among the ethically questionable behaviors according to the respondents' perception, various forms of plagiarism, discrimination, and inadequate attribution of (co)authorship are most present. In addition to quantitative data, the paper provides an overview of some qualitative data that refer to the given topic. Overall, the paper emphasizes the importance of the field it deals with and seeks to renew similar questions due to the new challenges in study and science that come with new technologies and trends.
ZNANSTVENA ETIKA ZAGREBAČKIH STUDENATA Knežević, Lovro; Ježovita, Josip
Media, culture and public relations (Online),
09/2023, Volume:
14, Issue:
2
Journal Article
Peer reviewed
Open access
Ključne riječi znanstvena etika, profesionalne vrijednosti, etički upitna ponašanja, studenti Abstract Doubly researched, through professional values and ethically questionable behaviors, scientific ...ethics among students appears in the same way as in similar scientific research, but with certain differences and emphases specific to student life. The paper presents the results on scientific ethics, which were obtained using survey and interview methods. The results refer to the following research aims: (1) representation of professional scientific values and norms among Zagreb students; and (2) the level of perception of ethically questionable behavior among Zagreb students. The analysis showed that among the professional norms objectivity and precision stand out, and among the ethically questionable behaviors according to the respondents' perception, various forms of plagiarism, discrimination, and inadequate attribution of (co)authorship are most present. Keywords scientific ethics, professional values, ethically questionable behaviors, students Uvod S velikim promjenama koje su nastupile ili tek dolaze na području studiranja i znanstvene prakse javlja se mogućnost i potreba za odgovornim praćenjem tih procesa.
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